<?php
header("Content-Type:text/html;charset=utf-8");
require("Appcode/conn.php");


$query="select * from ok3w_class";
$result=$mysqli->query($query);
if ($result) {
         if($result->num_rows>0){                                               //判断结果集中行的数目是否大于0
                  while($row =$result->fetch_array() ){                        //循环输出结果集中的记录
                           echo ($row[0])."<br>";
                           echo ($row[1])."<br>";
                           echo ($row[2])."<br>";
                           echo ($row[3])."<br>";
                           echo "<hr>";
                  }
         }
}else {
         echo "查询失败";
}
$result->free();
$mysqli->close();
?>